Weed

クサ

kusa

(slang: marijuana)

ヒヨッコ

hiyokko

(informal: puny person)

役立たず

yakutatazu

(informal: puny person)

柴

shiba

(underbrush; low shrubs)

雑草

zassō

(unwanted plant)

草取りをする

kusatori o suru

(to remove weeds from)

雑草をとる

zassō o toru

(to remove weeds from)

雑草を抜く

zassō o nuku

(to remove weeds from)